.createTopic
  background-color white
  margin-bottom 20px
  >.subjectTitle
    padding 0 30px
    height 42px
    line-height 42px
    font-size 14px
    color #30383e
    border-bottom 1px solid #e9ebed
  >Form
    padding 25px 0
    max-width 1000px
    /*每一行选项的下边距*/
    >.ant-form-item
      margin-bottom 35px
      &:nth-child(1)
        margin-bottom 20px
      &:nth-child(4)
        margin-bottom 20px
      &:nth-child(5)
        margin-bottom 25px
    /*单选按钮、复选框的高度*/
    >.ant-form-item label
      height 35px
      width 105px